Vitiligo: Overview Vitiligo: This skin disease often forms on both sides of the body as shown here on the knees. Vitiligo (vit-uh-lie-go) causes the skin to lose color. Patches of lighter skin appear. Some people develop a few patches. Others lose much more skin color.
Removing and inspecting spark plugs tell you a lot about how well the engine is running and what may be causing problems. All spark plugs should be removed and checked every 30,000 miles - even if your BMW is low maintenance - you're told to change spark plugs at 100,000 miles. This prevents the plugs from seizing in the block, causing expensive repairs down the road. Always note which plug came from which cylinder.
The schedule for many Chevrolets, though, is a change at 150,000 miles regardless of how the vehicle is driven. Many service shops, though â including some at dealerships that sell cars with lifetime coolant â say you should do a coolant change more often than the maintenance schedule recommends, such as every 30,000 or 50,000 miles.